Convert GEDCOM Coordinate Columns to Numeric

Converts all latitude and longitude columns in a parsed GEDCOM data frame from GEDCOM compass-prefix notation (e.g., `"N51.5074"`, `"W0.1278"`) to signed decimal degrees. By default, all columns whose names end in `_lat` or `_long` are converted.

Usage

convertGedcomCoords(df, lat_cols = NULL, long_cols = NULL)

Arguments

df

A data frame, typically returned by readGedcom().

lat_cols

Character vector of latitude column names to convert. Defaults to all columns ending in `"_lat"`.

long_cols

Character vector of longitude column names to convert. Defaults to all columns ending in `"_long"`.

Value

The data frame with the specified columns replaced by numeric values.

Examples

df <- data.frame(
  birth_lat = "N51.5074", birth_long = "W0.1278",
  stringsAsFactors = FALSE
)
convertGedcomCoords(df)
#>   birth_lat birth_long
#> 1   51.5074    -0.1278